Tuesday, February 27, 2018

Re: Is there a way to make a field both foreignKey or allow user to fill it in themself?

On 28/02/2018 1:58 PM, Alexander Joseph wrote:
> Sorry, I think my question was confusing. What I want to do is allow
> the user to either select a user from a drop down list of users from
> the ForeignKey in the Users model, or if there is not a user suitable
> to select in the drop down, they can manually type in a name themselves.

In the same field that would require a hack of the first water.  Way
above my pay grade. For me, anything which equates an existing user
object with a string typed in is likely to end in misery.

Otherwise a separate CharField for the typed in name and null=True and
blank=True in the ForeignKey ought to work.

Mike

>
> Thanks for your reply
>
>
>
> On Tuesday, February 27, 2018 at 7:45:51 PM UTC-7, Mike Dewhirst wrote:
>
> On 28/02/2018 1:26 AM, Alexander Joseph wrote:
> > Is there a way to make a form field or model field either a foreign
> > key reference or allow the user to fill in something themselves?
> I'm
> > making a fixed assets app and each fixed asset has an owner field,
> > which I would like to assign to an app user if possible, and if not
> > possible be able to fill in a name myself.
>
> Yes. Make the ForeignKey in the model null=True and blank=True so
> it can
> exist all alone. Then you can limit_choices_to whatever whatever
> suits
> your requirements ...
>
> https://docs.djangoproject.com/en/1.11/ref/models/fields/#django.db.models.ForeignKey.limit_choices_to
> <https://docs.djangoproject.com/en/1.11/ref/models/fields/#django.db.models.ForeignKey.limit_choices_to>
>
>
> hth
> Mike
>
>
> >
> > Thanks
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